Usually in under-age sports, it's the overbearing parents watching from the sidelines that tend to get a little too aggressive.

But as this video shows, children are well capable of going overboard themselves. This hockey match in Russia becomes a mass brawl as the post-match handshakes turn to shoves.

Emulating fights that are quite common in professional hockey, the kids decide to throw down the sticks and lay into each other, leaving the referees desperate to restore the peace.

Hat-tip to Bleacher Report.